So I have used Stl and 3mf and every time I export and put it in my slicer it either Upscales it by 2x in 3mf or extremely downscales it in stl. Is this a known problem in shapr3d?
What slicer?
In addition to what slicer, are you setting the units to millimeters prior to exporting in STL or 3MF?
the slicer i was using was cura 4 but I’ve tried prusa and have had the same problem
no it was in inches and it was the cura 4 slicer
Set the units to millimeters and then export your STL again. It should work fine in whatever slicer you use.